Reactive power response technology of wind-storage integrated system
A combined reactive power control strategy for permanent magnet direct-drive wind turbine and distributed hybrid energy storage system is proposed.Firstly,the reactive power regulation capability of the permanent magnet direct-drive wind turbine and energy storage system is analyzed,and it is determined that both the wind turbine and energy storage system can participate in reactive power regulation through converter control.Secondly,the reactive power control strategy is put forward,which is presented in terms of signal reception,initial allocation,and internal allocation.In initial allocation,the equal margin allocation method is adopted.In internal allocation,the proportional allocation with the priority output of energy storage is considered.Finally,the effectiveness of the strategy is verified by simulation,it shows that the power grid voltage can be supported by fully utilizing the reactive capacity of the wind turbine and energy storage system.
permanent magnetic direct-drive wind turbineintegrated wind storage systemdistributed energy storagereactive power allocationvoltage regulation
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